diff --git a/app/Config/Routes.php b/app/Config/Routes.php
index 005bbfd..bc302dd 100644
--- a/app/Config/Routes.php
+++ b/app/Config/Routes.php
@@ -1568,10 +1568,10 @@ $routes->get('app/nursing', 'Api\v1\NursingApi::pwaIndex');
 $routes->get('app/nursing/(:any)', 'Api\v1\NursingApi::pwaIndex');
 $routes->get('app/doctor', 'Api\v1\DoctorApi::pwaIndex');
 $routes->get('app/doctor/(:any)', 'Api\v1\DoctorApi::pwaIndex');
-$routes->get('app/queue', 'Api\v1\DoctorApi::queueIndex');
-$routes->get('app/queue/sw.js', 'Api\v1\DoctorApi::queueSw');
-$routes->get('app/queue/manifest.json', 'Api\v1\DoctorApi::queueManifest');
-$routes->get('app/queue/(:any)', 'Api\v1\DoctorApi::queueIndex');
+$routes->match(['get', 'head'], 'app/queue', 'Api\v1\DoctorApi::queueIndex');
+$routes->match(['get', 'head'], 'app/queue/sw.js', 'Api\v1\DoctorApi::queueSw');
+$routes->match(['get', 'head'], 'app/queue/manifest.json', 'Api\v1\DoctorApi::queueManifest');
+$routes->match(['get', 'head'], 'app/queue/(:any)', 'Api\v1\DoctorApi::queueIndex');
 
 // Dedicated RESTful JSON API v1 Group for React PWAs & Mobile Apps
 $routes->group('api/v1', ['namespace' => 'App\Controllers\Api\v1'], static function ($routes) {
diff --git a/public/App/Queue/manifest.json b/public/App/Queue/manifest.json
index fdf3096..b9f4b7d 100644
--- a/public/App/Queue/manifest.json
+++ b/public/App/Queue/manifest.json
@@ -14,6 +14,13 @@
   "orientation": "landscape",
   "categories": ["medical", "health", "utilities"],
   "prefer_related_applications": false,
+  "related_applications": [],
+  "scope_extensions": [],
+  "file_handlers": [],
+  "protocol_handlers": [],
+  "launch_handler": {
+    "client_mode": "focus-existing"
+  },
   "icons": [
     {
       "src": "/assets/img/pwa-icon-512.png",
@@ -55,6 +62,13 @@
       "type": "image/jpeg",
       "form_factor": "wide",
       "label": "OPD Token Tracker & Hospital Showcase TV Display"
+    },
+    {
+      "src": "/assets/img/screenshot-narrow.png",
+      "sizes": "750x1334",
+      "type": "image/png",
+      "form_factor": "narrow",
+      "label": "HMS Queue Mobile View"
     }
   ]
 }
diff --git a/public/assets/img/screenshot-narrow.png b/public/assets/img/screenshot-narrow.png
new file mode 100644
index 0000000..f6d8aaf
Binary files /dev/null and b/public/assets/img/screenshot-narrow.png differ